1. Remove the spark plug cap and the spark plug.
2. Check for discoloration and remove the carbon.
The porcelain insulator around the center elec-
trode of spark plug should be a medium-to-light
tan color.
3. Check the spark plug type and gap.
a Gap
NOTE:
The spark plug gap should be measured with a wire
thickness gauge and, if necessary, adjusted to specifi-
cation.
4. Install the spark plug.
NOTE:
If a torque wrench is not available when installing a
spark plug, a good estimate of the correct torque is
1/4-1/2 turn past finger tight. However, the spark plug
should be tightened to the specified torque as soon as
possible.
5. Install the spark plug cap.
– 27 –
AE00423
Spark plug inspection
The spark plug is important engine components, which
should be checked periodically.
Standard Spark Plug:
BPR4ES (NGK)
Spark Plug Gap:
0.7~0.8 mm (0.028~0.031 in)
Spark Plug Torque:
20 Nm (2 m•kg, 14 ft•lb)
7CB-F8199-11_b 07.12.22 10:16 Page 27
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